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Table 149 LED description
LED Description
LINK/ACT
•
On: Carrier signal has been received.
•
Flashing: Data is being received or/and transmitted.
•
Off: No carrier signal has been received.
LP/AL
•
On: The interface is in a loopback.
•
Off: No loopback or alarm is present.
•
Flashing: An alarm indication signal (AIS), loss of frame alignment (LFA)
signal, or remote alarm indication (RAI) signal is present.
LINK
•
Off: No link is present.
•
On: A link is present.
ACT
•
Off: No data is being transmitted or received.
•
Flashing: Data is being received or transmitted.
Interface cables and the connection methods
For more information about T1 interface cables and the connection methods, see "
."
FIC-1AE3
Introduction
The 1-port 34 Mbps ATM-E3 interface module (FIC-1AE3) provides these functions:
•
Two ATM cell mapping modes: ATM direct mapping (ADM) and physical layer convergence
protocol (PLCP)
•
Scrambling in data transmission
•
Line clock (when working as DTE interface) and internal clock (when working as DCE interface)
•
Four types of test measures: local cell loopback, local loopback, remote payload loopback, and
remote line loopback
Interface specifications
Table 150 Interface specifications
Item Description
Connector SMB
Number of connectors
2
Interface standard
G.703, G.751, G.832, G.823
Interface rate
34.368 Mbps
Interface cable
E3/T3 cable (75-ohm coaxial cables)
Supported services
ATM traffic CBR (constant bit rate), rt_VBR (variable bit rate-real time),
nrt_VBR (variable bit rate-non real time), UBR (unspecified bit rate)
Содержание MSR Router Comware 5 Series
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